The real-time monitoring of cerebral hemorrhage can reduce its disability and fatality rates greatly. On the basis of magnetic induction phase shift, we in this study used filter and amplifier hardware module, NI-PXI data-acquisition system and LabVIEW software to set up an experiment system. We used Band-pass sample method and correlation phase demodulation algorithm in the system. In order to test and evaluate the performance of the system, we carried out saline simulation experiments of brain hemorrhage. We also carried out rabbit cerebral hemorrhage experiments. The results of both saline simulation and animal experiments suggested that our monitoring system had a high phase detection precision, and it needed only about 0.030 4s to finish a single phase shift measurement, and the change of phase shift was directly proportional to the volume of saline or blood. The experimental results were consistent with theory. As a result, this system has the ability of real-time monitoring the progression of cerebral hemorrhage precisely, with many distinguished features, such as low cost, high phase detection precision, high sensitivity of response so that it has showed a good application prospect.
ObjectiveTo systematically review the effectiveness and safety of intensive blood pressure lowering in intracerebral hemorrhage (ICH). MethodsRandomised controlled trials (RCTs) and quasi-RCTs about ICH patients receiving intensive blood pressure lowering were searched from PubMed, EMbase, SCIE, The Cochrane Library (Issue 2, 2013), CBM, CNKI, VIP and WanFang Data until March, 2014. Literature was screened according to the exclusion and inclusion criteria by two reviewers independently and meta-analysis was conducted using RevMan 5.2 software after data extraction and quality assessment. ResultsA total of 24 studies were included involving 6 299 patients, of which 10 were RCTs and 14 were quasi-RCTs. The results of meta-analysis showed that intensive blood pressure lowering was superior to guideline-recommended intervention in reducing 24-h hematoma expansion rates (OR=0.36, 95%CI 0.28 to 0.46, P < 0.05), 24-h hematoma expansion volume (MD=-3.71, 95%CI-4.15 to-3.28, P < 0.05) and perihematomal edema volume (MD=-1.09, 95%CI-1.92 to-0.22, P < 0.05). Meanwhile, intensive blood pressure lowering improved 21-d NIHSS score (MD=-3.44, 95%CI-5.02 to-1.87, P < 0.05). But there was no significant difference in mortality and adverse reaction between the two groups. ConclusionCurrent evidence shows that intensive blood pressure lowering could reduce hematoma expansion volume and perihematomal edema volume, which is beneficial to recovery of neurological function, but ICH patients' long-term prognosis needs to be further studied. Due to the limited quantity and quality of the included studies, high quality studies are needed to verify the above conclusion.
Objective To investigate the clinical characteristics and risk factors of immature hematomas in patients with primary intracerebral hemorrhage. Methods Patients with primary intracerebral hemorrhage who admitted in West China Hospital of Sichuan University between March 2012 and January 2021 were retrospectively analyzed. Brain CT scan was used to evaluate the presence of immature hematomas, as well as hematoma volume and the morphological features such as the number of hematoma projections or satellite foci, and finger-like projections. Imaging markers of cerebral small vessel disease such as lacunes, microbleeds, white matter hyperintensities (WMH), and enlarged perivascular space were evaluated on MRI. Mature hematomas were defined when the hematomas were completely homogeneous, without any irregularity or hypodensity, otherwise the hematomas were regarded as immature. Patients were divided into two groups: mature hematomas and immature hematomas. Multivariate Logistic regression was used to analyze the risk factors of immature hematomas. Results A total of 170 patients were included. Among them, there were 121 males (71.2%). The average age was (60.9±13.3) years old, and 129 cases (75.9%) had immature hematomas. The comparison between the mature hematomas group and the immature hematomas group showed that higher admission National Institutes of Health Stroke Scale score, larger hematoma volume, hematoma volume >30 mL, more hematoma projections or satellite foci, lower incidence of round or oval hematomas, cerebral small vessel disease score, lower WMH burden, and lower burden of cerebral small vessel disease were associated with the occurrence of immature hematomas. The results of multiple logistic regression analysis showed that lower incidence of round or oval hematomas, lower incidence of WMH, and lower periventricular WMH scores were associated with the occurrence of immature hematomas after adjusting for age, gender, hypertension, diabetes, smoking, alcohol consumption, admission National Institutes of Health Stroke Scale score, and hematoma volume. Conclusion Lower incidence of round or oval hematomas and lower periventricular WMH burden are associated with immature hematomas.
Resuming oral anticoagulant (OAC) after intracerebral hemorrhage (ICH) is still a dilemma to clinical decision. To date, no high-quality randomized controlled trials demonstrate the timing and mode of safely resuming OAC. In recent years, some moderate-quality researches have suggested that OAC resuming after ICH can decrease the incidence of thromboembolic events and long-term mortality, without significantly increasing the risk of ICH; it is safer to resuming OAC in patients with non-lobar ICH than in patients with lobar-ICH; new OACs are superior to vitamin K antagonists; patients with high thromboembolic risk should resume OAC 2 weeks or even earlier after ICH, otherwise, a time-window for optimal resumption is between 4-8 weeks; meanwhile, individual patient characteristics should be considered and blood pressure should be strictly controlled.
Objective To investigate the etiological and clinical characteristics of 1298 cases with spontaneous intracerebral hemorrhage. Methods A retrospective analysis was conducted to investigate the epidemiology and clinical characteristics of 1298 patients who suffered from spontaneous intracerebral hemorrhage and were hospitalized in Neurology Dept. of Anhui Provincial Hospital from 2005 to 2009. Results Among 1 298 patients, 822 (63.33%) were male while 476 (36.67%) were female. The constituent ratio of male and female patients was significantly different; the patients mainly suffered from spontaneous intracerebral hemorrhage in winter and spring which was commonly caused by hypertension accounting for 65.87% and was mostly happened on basal ganglia site (n=895, 68.95%). Conclusions The incidence of spontaneous cerebral hemorrhage is related with age, season and hypertension, it is very important to be prevented effectively and to well control the blood pressure.
ObjectiveTo explore and compare the therapeutic effects of neuro-endoscopic and craniotomic hematoma evacuation for hypertensive hematomas in the basal ganglia region. MethodsEighty-six patients with hypertensive hematomas in the basal ganglia regions treated between January 2010 and September 2014 were divided into neuro-endoscopy and craniotomy groups randomly with 43 in each. Hematoma was removed directly under neuro-endoscope in the endoscopic group, while it was removed under the operating microscope in the craniotomy group. The average operation bleeding amount, residual hematoma after operation, hematoma evacuation rate, the changes of National Institutes of Health Stroke Scale (NIHSS) and Barthel index (BI) scores before operation, 1 and 3 months after operation were compared between the two groups. All data were analyzed statistically. ResultsThe average amount of operation bleeding was (127±26) mL, postoperative residual hematoma was (6±4) mL, and the hematoma clearance rate was (86±9)% in the neuro-endoscopy group, while those three numbers in the craniotomy group were respectively (184±41) mL, (11±6) mL, and (72±8)%, with all significant differences (P < 0.05). The NIHSS and BI scores were not significantly different between the two groups before surgery (P > 0.05). Seven days, one month and three months after surgery, the NIHSS score was significantly lower, and the BI score was significantly higher in the neuro-endoscopy group than the craniotomy group (P < 0.05). ConclusionNeuro-endoscopic surgery for hypertensive hematomas in basal ganglia region is proved to have such advantages as mini-invasion, direct-vision, complete clearance and good neural function recovery after surgery, which is a new approach in this field.
ObjectiveTo explore the influencing factors for the prognosis of intracerebral hemorrhage in extremely old patients. MethodsWe retrospectively analyzed the clinical data of 104 extremely old intracerebral hemorrhage patients (≥80 years old) treated between June 2010 and June 2013. According to Glass Outcome Score, the patients were divided into good outcome group (with a score of 4-5) and poor outcome group (with a score of 1-3). The age, gender, consciousness on admission, mean arterial pressure, systolic blood pressure on admission, and complication rate were analyzed and compared between the two groups of patients. ResultsA total of 104 patients were recruited in our study, with 62 in the good outcome group and 42 in the poor outcome group. The gender, age, average arterial pressure on admission between the two groups were not significantly different (P>0.05). The consciousness score at admission in the good outcome group (13.79±2.38) was significantly higher than that of the poor outcome group (8.24±3.80, P<0.05). The complication rate (45.2% vs. 88.1%) and systolic blood pressure on admission [(168.87±25.03) vs. (181.83±29.82) mm Hg (1 mm Hg=0.133 kPa] in the good outcome group were both significantly lower than those in the poor outcome group (P<0.05). ConclusionFor extremely old intracerebral hemorrhage patients, consciousness score and systolic blood pressure at admission, and complication rate are the influencing factors for the prognosis. In addition, a systolic pressure on admission above 180 mm Hg can be a risk factor for poor prognosis in extremely old patients.
Objective To determine whether fluoxetine, a commonly used selective serotonin reuptake inhibitors (SSRIs), could exacerbate bleeding in a intracerebral hemorrhage (ICH) mouse model. Methods Forty two 12-14 month old female specific pathogen free C57BL/6 mice were selected. Mice were randomly divided into fluoxetine group (fluoxetine pre-treatment) and control group, with 21 mice in each group. After treated with fluoxetine for 7 days, ICH was induced by injecting collagenase Ⅶ-S into the right striatum of middle-aged female mice. Effects of fluoxetine on exacerbating bleeding were evaluated by a combination of histologic, molecular, cellular, and behavioral assessments. Results On the third day after ICH, the hemorrhage volumes of the control group and fluoxetine group were (4.59±1.80) mm3 and (6.09±1.08) mm3, respectively. In middle-aged female mice subjected to collagenase-induced ICH, fluoxetine pre-treatment significantly exacerbated neurological deficit, cerebral hemorrhage volume, myelin damage, hemoglobin and iron deposition, neuronal degeneration, and brain edema (P<0.05). Although there was no significant difference in tail bleeding time between the two groups, fluoxetine pre-treatment might increase tail bleeding time [(276.73±211.06) vs. (438.00±236.79) s; t=−1.686, P=0.055]. Conclusions The use of fluoxetine and more generally of SSRIs, which inhibits platelet aggregation, may exacerbate bleeding after ICH. Thus, patients with depression after ICH may avoid concomitant use of such drugs when choosing an antidepressant.
Objective To analyze the trends in the burden of intracerebral hemorrhage (ICH) and its related risk factors in China from 1990 to 2021, providing evidence for targeted prevention and control. Methods Based on public data from the Global Burden of Disease Study 2021, four epidemiological indicators, including incidence, prevalence, deaths, and disability-adjusted life-years (DALYs) were selected to describe the burden of ICH in China in 2021. Change rates and estimated annual percentage changes (EAPC) were calculated to evaluate the trends in disease burden from 1990 to 2021. The Das Gupta method was used to decompose the effects of population growth, population aging and epidemiological changes on the burden during this period. Finally, the attributable burden of risk factors related to ICH was analyzed. Results In 2021, the age-standardized incidence, prevalence, mortality, and DALY rates of ICH in China were 61.2/100000, 222.1/100000, 68.8/100000, and 1351.6/100000, respectively, all higher than global estimates. From 1990 to 2021, although these rates showed a declining trend (EAPC: −2.24, −1.26, −2.38, and −2.47, respectively), the absolute disease burden, including the absolute number of incidence cases, prevalence cases, deaths, and DALYs, continued to rise, with an increase ranging from 20.57% to 51.59%. In addition, the burden of ICH in China varied by age and sex, with older adults and males experiencing a higher burden. Decomposition analysis indicated that population aging and growth were the primary drivers of the increasing ICH burden in China, while epidemiological changes mitigated this trend. Metabolic factors were the predominant attributable risk factors for ICH. High systolic blood pressure, ambient particulate matter pollution, and diet high in sodium were important risk factors common to both genders. The DALY burden attributable to smoking and alcohol use was higher in men, whereas impaired kidney function and secondhand smoke had a greater impact on women. Conclusions The burden of ICH in China has continued to increase from 1990 to 2021, and it may further escalate in the context of population aging. Risk factor control remains a key priority for prevention. Future strategies should incorporate age- and sex-specific interventions to reduce the ICH burden in China.
ObjectiveTo study the brain tissue oxygen and prognosis index of the postoperative patients with hypertensive intracerebral hemorrhage (HICH) associated with secondary brain insults. MethodsA total of 120 patients with HICH from January 2006 to June 2013 were treated by neurosurgical intervention. Postoperative monitoring of factors affecting the secondary brain insults in the 120 patients and of brain tissue oxygen in 10 patients was performed and statistically analysis was carried out. ResultsSecondary brain insults had a significant influence on the prognosis of postoperative patients with hypertensive intracerebral hemorrhage, and was correlated with brain tissue oxygen metabolism. ConclusionAbnormal secondary brain insults affect brain tissue oxygen metabolism, which may further deteriorate the brain damage and can lead to poor prognosis.